Final answer:
Presentation silver should be appraised every 5 to 10 years, depending on factors such as market conditions and the value of the silver.
Step-by-step explanation:
When it comes to appraising presentation silver, it is generally recommended to have it appraised every 5 to 10 years. This allows you to keep track of its value and make informed decisions about insurance and potential sales.
However, the frequency of appraisals may vary depending on factors such as market conditions, the age and rarity of the silver, and personal preferences. If you own highly valuable or antique presentation silver, it may be wise to have it appraised more frequently, perhaps every 5 years.